Flash firmware on UMiDIGI A1 Pro
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How to flash UMiDIGI A1 Pro?
Why reinstall the firmware?
Errors periodically appear in the Android operating system.
Some installed applications do not open.
Some programs from the Play Market do not start.
The phone restarts or shuts down randomly.
The phone is slow.
You have decided to try a different version of Android.
Where can I find the firmware?
On the official website of your phone manufacturer.
On sites where third-party developers and phone manufacturers post custom or official OS.
What should be done before installing the firmware?
Create a backup copy of user data, contacts and photos and transfer it to your computer.
Insert an SD card into your phone to write the firmware to it.
Find out the exact model of your smartphone.
Fully charge your device. If the battery runs out during the firmware, the device will no longer turn on.
Find and download the archive with Firmware. Place it on the SD card.
Installing TWRP Recovery
Install the Official TWRP App from the Play Store on your phone.
When you start the application for the first time, you must consent to future manipulations, as well as consent to granting the application Superuser rights. Check the checkboxes and press the 'OK' button.
After moving to the next screen, you need to select the 'TWRP FLASH' item and give the application root rights.
On the main screen of the application, click on the 'Select Device' drop-down list, and select your phone model.
After selecting a device, the application will direct the user to a web page to download the appropriate modified recovery environment image file. Download the suggested *.img file.
After downloading the image file, go to the main screen of the Official TWRP App and press the 'Select a file to flash' button. Then we tell the program the path where the file loaded in the previous step is located.
Press the 'FLASH TO RECOVERY' button and confirm your choice.
After the burn process is complete, the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete..
Copy the firmware and other necessary files to the SD card.
Insert a memory card into your phone.
To reboot into recovery, you need to use a special item in the Official TWRP App menu, accessible by pressing the button with three stripes in the upper left corner of the main screen of the application. Open the menu and select the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button.
Firmware via TWRP
Before flashing, you need to clear the 'Cache' and 'Data' sections, press 'WIPE' on the main screen. You will delete all user data from the phone, this will avoid software errors and other problems.
Press the 'Install' button to start the flashing.
On the file selection screen, at the very top there is a 'Storage' button for selecting an SD card.
Select the location where the files were copied. Press the OK button.
Select the firmware file and click on it. A screen opens with a warning about possible negative consequences, you need to check the item 'Zip signature verification', which will avoid using corrupted files when writing to the phone's memory sections.
The procedure for writing files to the phone's memory will begin, this is accompanied by the appearance of inscriptions in the log field and the movement of the progress bar.
After completing the installation procedure, a 'Successful' message appears on the screen.
Summary: Size: 69.1 mm x 145.3 mm x 8.5 mm; Aspect Ratio: 18: 9; Weight: 173 g; Usable surface: 77 %; Materials: Metal; Colors: Black Blue Silver; Origami: Print 3D Model; Diagonal: 5.5"; Screen Type: LCD IPS; Screen Resolution: 720 x 1440 px (HD ); Density: Medium Density, 293 Pixels per inch differentiable less than 40 cm away; Others: 2.5D curved glass screen, Capacitive, Multi-touch; Operating System: Android 8.0 Oreo; Model: MediaTek MT6739; CPU: ARM Cortex-A53; Type: Quad-Core; Frequency: 1.3 GHz; 64 Bits: Yes; GPU: PowerVR GE8100; RAM: 3 GB; Antutu score: 45.110 (Antutu v7) Overall performance better than 67% of devices; Capacity: 16 GB; More or less equivalent to: 2909 ...
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